from keras import backend as K
import numpy as np

x = np.random.randint(0,10,(128,6,10))
print(x.shape)

x_1 = K.expand_dims(x,1)
print(x_1.shape)

x_1_tiled = K.tile(
    x_1,
    [1,6,1,1]
)
print(x_1_tiled.shape)

